./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/bitvector/soft_float_3_true-unreach-call_true-no-overflow_true-termination.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/bitvector/soft_float_3_true-unreach-call_true-no-overflow_true-termination.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 641efd2558246d4ccf383f6f2b7128ac0bea67b9 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 23:25:21,819 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:25:21,821 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:25:21,837 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:25:21,838 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:25:21,839 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:25:21,843 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:25:21,845 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:25:21,846 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:25:21,847 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:25:21,848 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:25:21,849 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:25:21,849 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:25:21,851 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:25:21,852 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:25:21,853 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:25:21,854 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:25:21,856 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:25:21,858 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:25:21,860 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:25:21,862 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:25:21,863 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:25:21,866 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:25:21,866 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:25:21,866 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:25:21,867 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:25:21,868 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:25:21,870 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:25:21,870 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:25:21,872 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:25:21,872 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:25:21,873 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:25:21,873 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:25:21,873 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:25:21,874 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:25:21,876 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:25:21,876 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-28 23:25:21,896 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:25:21,897 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:25:21,899 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:25:21,900 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:25:21,901 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:25:21,901 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:25:21,902 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:25:21,902 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:25:21,903 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:25:21,904 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:25:21,905 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:25:21,906 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:25:21,907 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 23:25:21,907 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:25:21,907 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:25:21,907 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 23:25:21,908 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:25:21,908 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:25:21,908 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:25:21,908 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:25:21,908 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 23:25:21,909 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:25:21,910 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:25:21,910 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:25:21,910 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:25:21,911 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:25:21,911 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:25:21,912 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:25:21,912 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:25:21,913 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:25:21,913 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:25:21,915 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:25:21,915 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 641efd2558246d4ccf383f6f2b7128ac0bea67b9 [2018-11-28 23:25:21,965 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:25:21,985 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:25:21,993 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:25:21,995 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:25:21,995 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:25:21,996 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/bitvector/soft_float_3_true-unreach-call_true-no-overflow_true-termination.c.cil.c [2018-11-28 23:25:22,061 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bc726c9d/02219a9dab44407db1d6c04984e99301/FLAGce23ae9eb [2018-11-28 23:25:22,577 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:25:22,579 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/bitvector/soft_float_3_true-unreach-call_true-no-overflow_true-termination.c.cil.c [2018-11-28 23:25:22,590 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bc726c9d/02219a9dab44407db1d6c04984e99301/FLAGce23ae9eb [2018-11-28 23:25:22,893 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bc726c9d/02219a9dab44407db1d6c04984e99301 [2018-11-28 23:25:22,896 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:25:22,898 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:25:22,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:25:22,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:25:22,903 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:25:22,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:25:22" (1/1) ... [2018-11-28 23:25:22,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67d6818b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:25:22, skipping insertion in model container [2018-11-28 23:25:22,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:25:22" (1/1) ... [2018-11-28 23:25:22,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:25:22,960 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:25:23,191 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:25:23,196 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:25:23,241 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:25:23,264 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:25:23,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:25:23 WrapperNode [2018-11-28 23:25:23,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:25:23,265 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:25:23,265 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:25:23,265 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:25:23,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:25:23" (1/1) ... [2018-11-28 23:25:23,282 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:25:23" (1/1) ... [2018-11-28 23:25:23,390 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:25:23,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:25:23,391 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:25:23,391 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:25:23,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:25:23" (1/1) ... [2018-11-28 23:25:23,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:25:23" (1/1) ... [2018-11-28 23:25:23,403 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:25:23" (1/1) ... [2018-11-28 23:25:23,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:25:23" (1/1) ... [2018-11-28 23:25:23,411 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:25:23" (1/1) ... [2018-11-28 23:25:23,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:25:23" (1/1) ... [2018-11-28 23:25:23,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:25:23" (1/1) ... [2018-11-28 23:25:23,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:25:23,427 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:25:23,427 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:25:23,428 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:25:23,429 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:25:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:23,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:25:23,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:25:24,297 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:25:24,297 INFO L280 CfgBuilder]: Removed 24 assue(true) statements. [2018-11-28 23:25:24,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:25:24 BoogieIcfgContainer [2018-11-28 23:25:24,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:25:24,299 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:25:24,299 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:25:24,302 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:25:24,303 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:25:24,303 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:25:22" (1/3) ... [2018-11-28 23:25:24,305 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@f0042e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:25:24, skipping insertion in model container [2018-11-28 23:25:24,305 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:25:24,305 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:25:23" (2/3) ... [2018-11-28 23:25:24,306 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@f0042e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:25:24, skipping insertion in model container [2018-11-28 23:25:24,306 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:25:24,306 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:25:24" (3/3) ... [2018-11-28 23:25:24,308 INFO L375 chiAutomizerObserver]: Analyzing ICFG soft_float_3_true-unreach-call_true-no-overflow_true-termination.c.cil.c [2018-11-28 23:25:24,368 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:25:24,369 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:25:24,369 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:25:24,369 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:25:24,369 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:25:24,370 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:25:24,370 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:25:24,370 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:25:24,370 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:25:24,385 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states. [2018-11-28 23:25:24,413 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2018-11-28 23:25:24,413 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:25:24,413 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:25:24,420 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-28 23:25:24,420 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 23:25:24,420 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:25:24,420 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states. [2018-11-28 23:25:24,426 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2018-11-28 23:25:24,427 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:25:24,427 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:25:24,427 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-28 23:25:24,427 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 23:25:24,436 INFO L794 eck$LassoCheckResult]: Stem: 41#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 35#L19true assume !(0 == base2flt_~m % 4294967296); 23#L25true assume !(base2flt_~m % 4294967296 < 16777216); 17#L47-2true [2018-11-28 23:25:24,436 INFO L796 eck$LassoCheckResult]: Loop: 17#L47-2true assume !false; 28#L48true assume base2flt_~m % 4294967296 >= 33554432; 53#L49true assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 17#L47-2true [2018-11-28 23:25:24,442 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:25:24,443 INFO L82 PathProgramCache]: Analyzing trace with hash 30973, now seen corresponding path program 1 times [2018-11-28 23:25:24,444 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:25:24,445 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:25:24,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:25:24,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:25:24,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:25:24,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:25:24,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:25:24,685 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:25:24,686 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-11-28 23:25:24,691 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 23:25:24,691 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:25:24,691 INFO L82 PathProgramCache]: Analyzing trace with hash 73619, now seen corresponding path program 1 times [2018-11-28 23:25:24,691 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:25:24,692 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:25:24,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:25:24,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:25:24,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:25:24,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:25:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:25:24,860 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-11-28 23:25:24,966 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-11-28 23:25:24,987 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:25:24,989 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:25:24,989 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:25:24,989 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:25:24,989 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:25:24,990 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:24,990 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:25:24,990 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:25:24,990 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_3_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration1_Loop [2018-11-28 23:25:24,990 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:25:24,990 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:25:25,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:25:25,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:25:25,318 WARN L180 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 23 [2018-11-28 23:25:25,384 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:25:25,384 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2018-11-28 23:25:25,397 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:25:25,397 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:25,443 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:25:25,444 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m=-1} Honda state: {ULTIMATE.start_base2flt_~m=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2018-11-28 23:25:25,478 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:25:25,478 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2018-11-28 23:25:25,521 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:25:25,521 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:25,549 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:25:25,551 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:25:25,551 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:25:25,551 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:25:25,552 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:25:25,552 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:25:25,552 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:25,552 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:25:25,552 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:25:25,552 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_3_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration1_Loop [2018-11-28 23:25:25,552 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:25:25,554 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:25:25,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:25:25,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:25:25,737 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:25:25,744 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:25:25,746 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:25:25,748 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:25:25,748 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:25:25,750 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:25:25,750 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:25:25,750 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:25:25,754 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:25:25,754 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:25:25,765 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:25:25,766 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:25:25,768 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:25:25,768 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:25:25,768 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:25:25,768 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:25:25,768 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:25:25,770 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:25:25,770 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:25:25,781 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:25:25,791 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:25:25,792 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 23:25:25,794 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:25:25,796 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:25:25,796 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:25:25,797 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2018-11-28 23:25:25,798 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:25:25,852 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:25:25,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:25:25,883 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:25:25,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:25:25,909 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:25:25,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:25:25,930 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 23:25:25,931 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states. Second operand 3 states. [2018-11-28 23:25:26,060 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 69 states.. Second operand 3 states. Result 200 states and 340 transitions. Complement of second has 6 states. [2018-11-28 23:25:26,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:25:26,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:25:26,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 225 transitions. [2018-11-28 23:25:26,068 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 225 transitions. Stem has 3 letters. Loop has 3 letters. [2018-11-28 23:25:26,070 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:25:26,070 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 225 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-28 23:25:26,071 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:25:26,071 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 225 transitions. Stem has 3 letters. Loop has 6 letters. [2018-11-28 23:25:26,071 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:25:26,072 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 200 states and 340 transitions. [2018-11-28 23:25:26,086 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 39 [2018-11-28 23:25:26,098 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 200 states to 78 states and 119 transitions. [2018-11-28 23:25:26,100 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 74 [2018-11-28 23:25:26,102 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 75 [2018-11-28 23:25:26,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 78 states and 119 transitions. [2018-11-28 23:25:26,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:25:26,105 INFO L705 BuchiCegarLoop]: Abstraction has 78 states and 119 transitions. [2018-11-28 23:25:26,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states and 119 transitions. [2018-11-28 23:25:26,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 67. [2018-11-28 23:25:26,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-11-28 23:25:26,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 107 transitions. [2018-11-28 23:25:26,162 INFO L728 BuchiCegarLoop]: Abstraction has 67 states and 107 transitions. [2018-11-28 23:25:26,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:25:26,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:25:26,168 INFO L87 Difference]: Start difference. First operand 67 states and 107 transitions. Second operand 3 states. [2018-11-28 23:25:26,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:25:26,535 INFO L93 Difference]: Finished difference Result 34 states and 47 transitions. [2018-11-28 23:25:26,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:25:26,536 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 47 transitions. [2018-11-28 23:25:26,537 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2018-11-28 23:25:26,539 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 34 states and 47 transitions. [2018-11-28 23:25:26,540 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2018-11-28 23:25:26,540 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2018-11-28 23:25:26,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 47 transitions. [2018-11-28 23:25:26,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:25:26,545 INFO L705 BuchiCegarLoop]: Abstraction has 34 states and 47 transitions. [2018-11-28 23:25:26,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 47 transitions. [2018-11-28 23:25:26,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-28 23:25:26,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-28 23:25:26,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 47 transitions. [2018-11-28 23:25:26,548 INFO L728 BuchiCegarLoop]: Abstraction has 34 states and 47 transitions. [2018-11-28 23:25:26,548 INFO L608 BuchiCegarLoop]: Abstraction has 34 states and 47 transitions. [2018-11-28 23:25:26,548 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 23:25:26,548 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 47 transitions. [2018-11-28 23:25:26,549 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2018-11-28 23:25:26,550 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:25:26,550 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:25:26,550 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 23:25:26,550 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 23:25:26,551 INFO L794 eck$LassoCheckResult]: Stem: 443#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 441#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 414#L69 base2flt_#res := base2flt_~__retres4~0; 415#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := 1, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 438#L19-1 assume !(0 == base2flt_~m % 4294967296); 426#L25-1 assume !(base2flt_~m % 4294967296 < 16777216); 418#L47-5 [2018-11-28 23:25:26,551 INFO L796 eck$LassoCheckResult]: Loop: 418#L47-5 assume !false; 421#L48-1 assume base2flt_~m % 4294967296 >= 33554432; 416#L49-1 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 418#L47-5 [2018-11-28 23:25:26,551 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:25:26,551 INFO L82 PathProgramCache]: Analyzing trace with hash 921737699, now seen corresponding path program 1 times [2018-11-28 23:25:26,552 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:25:26,554 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:25:26,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:25:26,555 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:25:26,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:25:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:25:26,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:25:26,619 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:25:26,619 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:25:26,620 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 23:25:26,620 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:25:26,620 INFO L82 PathProgramCache]: Analyzing trace with hash 136178, now seen corresponding path program 1 times [2018-11-28 23:25:26,620 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:25:26,620 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:25:26,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:25:26,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:25:26,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:25:26,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:25:26,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:25:26,690 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:25:26,691 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:25:26,691 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:25:26,691 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:25:26,691 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:25:26,692 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:26,692 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:25:26,692 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:25:26,692 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_3_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration2_Loop [2018-11-28 23:25:26,692 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:25:26,693 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:25:26,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:25:26,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:25:26,844 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 23 [2018-11-28 23:25:26,950 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:25:26,950 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:26,954 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:25:26,954 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:25:26,988 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:25:26,989 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m=-1} Honda state: {ULTIMATE.start_base2flt_~m=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:27,015 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:25:27,015 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2018-11-28 23:25:27,057 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:25:27,057 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:27,079 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:25:27,080 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:25:27,081 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:25:27,081 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:25:27,081 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:25:27,081 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:25:27,081 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:27,081 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:25:27,082 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:25:27,082 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_3_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration2_Loop [2018-11-28 23:25:27,082 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:25:27,082 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:25:27,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:25:27,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:25:27,349 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:25:27,349 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:25:27,350 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:25:27,351 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:25:27,351 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:25:27,351 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:25:27,352 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:25:27,352 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:25:27,353 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:25:27,353 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:25:27,363 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:25:27,364 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:25:27,365 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:25:27,365 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:25:27,365 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:25:27,365 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:25:27,365 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:25:27,366 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:25:27,366 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:25:27,373 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:25:27,377 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:25:27,381 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 23:25:27,381 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:25:27,381 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:25:27,382 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:25:27,382 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2018-11-28 23:25:27,383 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:25:27,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:25:27,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:25:27,426 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:25:27,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:25:27,441 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:25:27,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:25:27,442 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 23:25:27,442 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 34 states and 47 transitions. cyclomatic complexity: 19 Second operand 3 states. [2018-11-28 23:25:27,488 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 34 states and 47 transitions. cyclomatic complexity: 19. Second operand 3 states. Result 62 states and 84 transitions. Complement of second has 5 states. [2018-11-28 23:25:27,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:25:27,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:25:27,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 49 transitions. [2018-11-28 23:25:27,491 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 49 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-28 23:25:27,492 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:25:27,492 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 49 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-28 23:25:27,492 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:25:27,493 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 49 transitions. Stem has 6 letters. Loop has 6 letters. [2018-11-28 23:25:27,494 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:25:27,495 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 84 transitions. [2018-11-28 23:25:27,496 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2018-11-28 23:25:27,497 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 59 states and 80 transitions. [2018-11-28 23:25:27,497 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 55 [2018-11-28 23:25:27,497 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 56 [2018-11-28 23:25:27,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 80 transitions. [2018-11-28 23:25:27,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:25:27,498 INFO L705 BuchiCegarLoop]: Abstraction has 59 states and 80 transitions. [2018-11-28 23:25:27,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states and 80 transitions. [2018-11-28 23:25:27,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 37. [2018-11-28 23:25:27,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-28 23:25:27,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2018-11-28 23:25:27,503 INFO L728 BuchiCegarLoop]: Abstraction has 37 states and 51 transitions. [2018-11-28 23:25:27,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:25:27,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:25:27,503 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand 3 states. [2018-11-28 23:25:27,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:25:27,610 INFO L93 Difference]: Finished difference Result 35 states and 46 transitions. [2018-11-28 23:25:27,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:25:27,611 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 46 transitions. [2018-11-28 23:25:27,612 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2018-11-28 23:25:27,613 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 35 states and 46 transitions. [2018-11-28 23:25:27,616 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2018-11-28 23:25:27,616 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2018-11-28 23:25:27,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 46 transitions. [2018-11-28 23:25:27,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:25:27,617 INFO L705 BuchiCegarLoop]: Abstraction has 35 states and 46 transitions. [2018-11-28 23:25:27,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 46 transitions. [2018-11-28 23:25:27,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2018-11-28 23:25:27,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-28 23:25:27,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 41 transitions. [2018-11-28 23:25:27,621 INFO L728 BuchiCegarLoop]: Abstraction has 31 states and 41 transitions. [2018-11-28 23:25:27,622 INFO L608 BuchiCegarLoop]: Abstraction has 31 states and 41 transitions. [2018-11-28 23:25:27,622 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 23:25:27,622 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 41 transitions. [2018-11-28 23:25:27,622 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2018-11-28 23:25:27,623 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:25:27,623 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:25:27,623 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 23:25:27,623 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 23:25:27,624 INFO L794 eck$LassoCheckResult]: Stem: 654#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 651#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 628#L69 base2flt_#res := base2flt_~__retres4~0; 629#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := 1, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 648#L19-1 assume !(0 == base2flt_~m % 4294967296); 636#L25-1 assume base2flt_~m % 4294967296 < 16777216; 637#L37-3 [2018-11-28 23:25:27,627 INFO L796 eck$LassoCheckResult]: Loop: 637#L37-3 assume !false; 646#L28-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 647#L37-2 assume base2flt_~m % 4294967296 < 16777216; 637#L37-3 [2018-11-28 23:25:27,627 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:25:27,627 INFO L82 PathProgramCache]: Analyzing trace with hash 921737673, now seen corresponding path program 1 times [2018-11-28 23:25:27,627 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:25:27,627 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:25:27,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:25:27,628 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:25:27,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:25:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:25:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:25:27,653 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:25:27,653 INFO L82 PathProgramCache]: Analyzing trace with hash 110419, now seen corresponding path program 1 times [2018-11-28 23:25:27,653 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:25:27,653 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:25:27,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:25:27,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:25:27,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:25:27,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:25:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:25:27,662 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:25:27,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1761173643, now seen corresponding path program 1 times [2018-11-28 23:25:27,663 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:25:27,663 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:25:27,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:25:27,664 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:25:27,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:25:27,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:25:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:25:27,721 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:25:27,721 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:25:27,721 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:25:27,721 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:25:27,722 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:25:27,722 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:27,722 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:25:27,722 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:25:27,722 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_3_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration3_Loop [2018-11-28 23:25:27,722 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:25:27,722 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:25:27,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:25:27,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:25:27,884 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:25:27,884 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:27,890 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:25:27,890 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:25:27,902 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:25:27,902 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m=0} Honda state: {ULTIMATE.start_base2flt_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:27,921 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:25:27,921 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:27,950 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:25:27,950 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:25:27,972 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:25:27,974 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:25:27,974 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:25:27,974 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:25:27,975 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:25:27,975 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:25:27,975 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:27,975 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:25:27,975 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:25:27,975 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_3_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration3_Loop [2018-11-28 23:25:27,975 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:25:27,976 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:25:27,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:25:28,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:25:28,100 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:25:28,101 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:25:28,101 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:25:28,102 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:25:28,103 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:25:28,103 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:25:28,103 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:25:28,103 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:25:28,106 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:25:28,107 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:25:28,109 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:25:28,110 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:25:28,110 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:25:28,112 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:25:28,112 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:25:28,112 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:25:28,113 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:25:28,113 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:25:28,113 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:25:28,118 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:25:28,120 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:25:28,120 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 23:25:28,122 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:25:28,122 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:25:28,122 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:25:28,122 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2018-11-28 23:25:28,123 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:25:28,173 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:25:28,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:25:28,199 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:25:28,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:25:28,216 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:25:28,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:25:28,268 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 23:25:28,268 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 41 transitions. cyclomatic complexity: 15 Second operand 4 states. [2018-11-28 23:25:28,283 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 41 transitions. cyclomatic complexity: 15. Second operand 4 states. Result 59 states and 78 transitions. Complement of second has 5 states. [2018-11-28 23:25:28,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:25:28,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 23:25:28,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 43 transitions. [2018-11-28 23:25:28,286 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-28 23:25:28,287 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:25:28,287 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-28 23:25:28,287 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:25:28,287 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 6 letters. Loop has 6 letters. [2018-11-28 23:25:28,288 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:25:28,288 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 78 transitions. [2018-11-28 23:25:28,289 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2018-11-28 23:25:28,289 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 56 states and 74 transitions. [2018-11-28 23:25:28,289 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 50 [2018-11-28 23:25:28,290 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2018-11-28 23:25:28,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 74 transitions. [2018-11-28 23:25:28,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:25:28,290 INFO L705 BuchiCegarLoop]: Abstraction has 56 states and 74 transitions. [2018-11-28 23:25:28,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 74 transitions. [2018-11-28 23:25:28,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 34. [2018-11-28 23:25:28,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-28 23:25:28,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2018-11-28 23:25:28,295 INFO L728 BuchiCegarLoop]: Abstraction has 34 states and 45 transitions. [2018-11-28 23:25:28,295 INFO L608 BuchiCegarLoop]: Abstraction has 34 states and 45 transitions. [2018-11-28 23:25:28,295 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 23:25:28,295 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 45 transitions. [2018-11-28 23:25:28,296 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2018-11-28 23:25:28,296 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:25:28,296 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:25:28,296 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:25:28,296 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 23:25:28,297 INFO L794 eck$LassoCheckResult]: Stem: 793#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 790#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 766#L69 base2flt_#res := base2flt_~__retres4~0; 767#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := 1, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 787#L19-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 778#L69-1 base2flt_#res := base2flt_~__retres4~0; 779#L70-1 main_#t~ret5 := base2flt_#res;main_~one~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 782#L19-2 assume !(0 == base2flt_~m % 4294967296); 772#L25-2 assume !(base2flt_~m % 4294967296 < 16777216); 765#L47-8 [2018-11-28 23:25:28,297 INFO L796 eck$LassoCheckResult]: Loop: 765#L47-8 assume !false; 788#L48-2 assume base2flt_~m % 4294967296 >= 33554432; 763#L49-2 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 765#L47-8 [2018-11-28 23:25:28,297 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:25:28,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1760951196, now seen corresponding path program 1 times [2018-11-28 23:25:28,297 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:25:28,297 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:25:28,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:25:28,298 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:25:28,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:25:28,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:25:28,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:25:28,365 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:25:28,365 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:25:28,365 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 23:25:28,365 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:25:28,366 INFO L82 PathProgramCache]: Analyzing trace with hash 198737, now seen corresponding path program 1 times [2018-11-28 23:25:28,366 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:25:28,366 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:25:28,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:25:28,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:25:28,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:25:28,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:25:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:25:28,409 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:25:28,409 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:25:28,409 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:25:28,409 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:25:28,409 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:25:28,410 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:28,410 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:25:28,410 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:25:28,410 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_3_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration4_Loop [2018-11-28 23:25:28,410 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:25:28,411 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:25:28,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:25:28,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:25:28,609 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:25:28,609 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:28,614 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:25:28,614 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:28,637 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:25:28,638 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:25:28,659 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:25:28,661 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:25:28,661 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:25:28,661 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:25:28,661 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:25:28,661 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:25:28,661 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:28,661 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:25:28,662 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:25:28,662 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_3_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration4_Loop [2018-11-28 23:25:28,662 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:25:28,662 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:25:28,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:25:28,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:25:28,811 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:25:28,811 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:25:28,812 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:25:28,815 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:25:28,815 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:25:28,815 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:25:28,815 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:25:28,815 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:25:28,816 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:25:28,816 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:25:28,821 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:25:28,823 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:25:28,823 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 23:25:28,823 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:25:28,824 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:25:28,825 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:25:28,825 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2018-11-28 23:25:28,825 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:25:28,845 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:25:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:25:28,865 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:25:28,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:25:28,878 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:25:28,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:25:28,878 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 23:25:28,879 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 34 states and 45 transitions. cyclomatic complexity: 16 Second operand 3 states. [2018-11-28 23:25:28,907 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 34 states and 45 transitions. cyclomatic complexity: 16. Second operand 3 states. Result 51 states and 65 transitions. Complement of second has 5 states. [2018-11-28 23:25:28,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:25:28,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:25:28,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 43 transitions. [2018-11-28 23:25:28,909 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-28 23:25:28,909 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:25:28,909 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-28 23:25:28,911 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:25:28,911 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 9 letters. Loop has 6 letters. [2018-11-28 23:25:28,911 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:25:28,911 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 65 transitions. [2018-11-28 23:25:28,914 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2018-11-28 23:25:28,915 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 48 states and 61 transitions. [2018-11-28 23:25:28,915 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2018-11-28 23:25:28,915 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2018-11-28 23:25:28,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 61 transitions. [2018-11-28 23:25:28,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:25:28,916 INFO L705 BuchiCegarLoop]: Abstraction has 48 states and 61 transitions. [2018-11-28 23:25:28,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 61 transitions. [2018-11-28 23:25:28,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 37. [2018-11-28 23:25:28,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-28 23:25:28,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 49 transitions. [2018-11-28 23:25:28,924 INFO L728 BuchiCegarLoop]: Abstraction has 37 states and 49 transitions. [2018-11-28 23:25:28,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:25:28,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:25:28,925 INFO L87 Difference]: Start difference. First operand 37 states and 49 transitions. Second operand 3 states. [2018-11-28 23:25:29,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:25:29,024 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2018-11-28 23:25:29,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:25:29,025 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 52 transitions. [2018-11-28 23:25:29,025 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2018-11-28 23:25:29,026 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 41 states and 52 transitions. [2018-11-28 23:25:29,026 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2018-11-28 23:25:29,026 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2018-11-28 23:25:29,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 52 transitions. [2018-11-28 23:25:29,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:25:29,027 INFO L705 BuchiCegarLoop]: Abstraction has 41 states and 52 transitions. [2018-11-28 23:25:29,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 52 transitions. [2018-11-28 23:25:29,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 37. [2018-11-28 23:25:29,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-28 23:25:29,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2018-11-28 23:25:29,031 INFO L728 BuchiCegarLoop]: Abstraction has 37 states and 48 transitions. [2018-11-28 23:25:29,032 INFO L608 BuchiCegarLoop]: Abstraction has 37 states and 48 transitions. [2018-11-28 23:25:29,032 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-28 23:25:29,032 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 48 transitions. [2018-11-28 23:25:29,032 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2018-11-28 23:25:29,034 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:25:29,034 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:25:29,034 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:25:29,034 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 23:25:29,035 INFO L794 eck$LassoCheckResult]: Stem: 1014#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1011#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 985#L69 base2flt_#res := base2flt_~__retres4~0; 986#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := 1, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1007#L19-1 assume !(0 == base2flt_~m % 4294967296); 994#L25-1 assume base2flt_~m % 4294967296 < 16777216; 995#L37-3 assume !false; 1004#L28-1 assume base2flt_~e <= -128;base2flt_~__retres4~0 := 0; 998#L69-1 base2flt_#res := base2flt_~__retres4~0; 999#L70-1 main_#t~ret5 := base2flt_#res;main_~one~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1002#L19-2 assume !(0 == base2flt_~m % 4294967296); 991#L25-2 assume base2flt_~m % 4294967296 < 16777216; 993#L37-5 [2018-11-28 23:25:29,035 INFO L796 eck$LassoCheckResult]: Loop: 993#L37-5 assume !false; 1000#L28-2 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 1001#L37-4 assume base2flt_~m % 4294967296 < 16777216; 993#L37-5 [2018-11-28 23:25:29,057 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:25:29,057 INFO L82 PathProgramCache]: Analyzing trace with hash -197167406, now seen corresponding path program 1 times [2018-11-28 23:25:29,057 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:25:29,057 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:25:29,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:25:29,060 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:25:29,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:25:29,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:25:29,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:25:29,118 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:25:29,118 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 23:25:29,118 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 23:25:29,118 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:25:29,118 INFO L82 PathProgramCache]: Analyzing trace with hash 172978, now seen corresponding path program 1 times [2018-11-28 23:25:29,118 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:25:29,118 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:25:29,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:25:29,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:25:29,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:25:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:25:29,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:25:29,190 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:25:29,191 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:25:29,191 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:25:29,191 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:25:29,191 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:25:29,191 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:29,191 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:25:29,191 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:25:29,191 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_3_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration5_Loop [2018-11-28 23:25:29,191 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:25:29,194 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:25:29,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:25:29,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:25:29,300 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:25:29,301 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:29,314 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:25:29,314 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:25:29,331 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:25:29,331 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m=0} Honda state: {ULTIMATE.start_base2flt_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:29,360 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:25:29,360 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:29,382 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:25:29,382 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:25:29,402 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:25:29,403 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:25:29,403 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:25:29,404 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:25:29,404 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:25:29,404 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:25:29,404 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:29,404 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:25:29,404 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:25:29,404 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_3_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration5_Loop [2018-11-28 23:25:29,404 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:25:29,404 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:25:29,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:25:29,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:25:29,515 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:25:29,516 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:25:29,516 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:25:29,519 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:25:29,519 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:25:29,519 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:25:29,519 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:25:29,520 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:25:29,520 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:25:29,520 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:25:29,522 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:25:29,522 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:25:29,523 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:25:29,523 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:25:29,523 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:25:29,523 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:25:29,523 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:25:29,524 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:25:29,524 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:25:29,528 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:25:29,530 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:25:29,530 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 23:25:29,530 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:25:29,530 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:25:29,531 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:25:29,531 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2018-11-28 23:25:29,531 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:25:29,699 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:25:29,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:25:29,717 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:25:29,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:25:29,723 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:25:29,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:25:29,757 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 23:25:29,757 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 48 transitions. cyclomatic complexity: 16 Second operand 4 states. [2018-11-28 23:25:29,771 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 48 transitions. cyclomatic complexity: 16. Second operand 4 states. Result 55 states and 69 transitions. Complement of second has 5 states. [2018-11-28 23:25:29,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:25:29,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 23:25:29,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 43 transitions. [2018-11-28 23:25:29,772 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-28 23:25:29,772 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:25:29,772 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 15 letters. Loop has 3 letters. [2018-11-28 23:25:29,774 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:25:29,774 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 12 letters. Loop has 6 letters. [2018-11-28 23:25:29,775 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:25:29,775 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 69 transitions. [2018-11-28 23:25:29,776 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2018-11-28 23:25:29,777 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 52 states and 65 transitions. [2018-11-28 23:25:29,777 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2018-11-28 23:25:29,777 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2018-11-28 23:25:29,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 65 transitions. [2018-11-28 23:25:29,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:25:29,778 INFO L705 BuchiCegarLoop]: Abstraction has 52 states and 65 transitions. [2018-11-28 23:25:29,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 65 transitions. [2018-11-28 23:25:29,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 40. [2018-11-28 23:25:29,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-28 23:25:29,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 52 transitions. [2018-11-28 23:25:29,782 INFO L728 BuchiCegarLoop]: Abstraction has 40 states and 52 transitions. [2018-11-28 23:25:29,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 23:25:29,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 23:25:29,783 INFO L87 Difference]: Start difference. First operand 40 states and 52 transitions. Second operand 4 states. [2018-11-28 23:25:29,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:25:29,853 INFO L93 Difference]: Finished difference Result 44 states and 55 transitions. [2018-11-28 23:25:29,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 23:25:29,855 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 55 transitions. [2018-11-28 23:25:29,856 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-28 23:25:29,857 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 43 states and 54 transitions. [2018-11-28 23:25:29,857 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2018-11-28 23:25:29,857 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2018-11-28 23:25:29,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 54 transitions. [2018-11-28 23:25:29,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:25:29,857 INFO L705 BuchiCegarLoop]: Abstraction has 43 states and 54 transitions. [2018-11-28 23:25:29,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 54 transitions. [2018-11-28 23:25:29,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 40. [2018-11-28 23:25:29,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-28 23:25:29,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2018-11-28 23:25:29,861 INFO L728 BuchiCegarLoop]: Abstraction has 40 states and 51 transitions. [2018-11-28 23:25:29,861 INFO L608 BuchiCegarLoop]: Abstraction has 40 states and 51 transitions. [2018-11-28 23:25:29,861 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-28 23:25:29,861 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 51 transitions. [2018-11-28 23:25:29,863 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-28 23:25:29,863 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:25:29,863 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:25:29,864 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:25:29,864 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 23:25:29,864 INFO L794 eck$LassoCheckResult]: Stem: 1262#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1257#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 1230#L69 base2flt_#res := base2flt_~__retres4~0; 1231#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := 1, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1253#L19-1 assume !(0 == base2flt_~m % 4294967296); 1239#L25-1 assume base2flt_~m % 4294967296 < 16777216; 1240#L37-3 assume !false; 1251#L28-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 1252#L37-2 assume !(base2flt_~m % 4294967296 < 16777216); 1258#L63-1 base2flt_~m := ~bitwiseAnd(base2flt_~m, ~bitwiseComplement(16777216));base2flt_~res~0 := ~bitwiseOr(base2flt_~m, 16777216 * (128 + base2flt_~e));base2flt_~__retres4~0 := base2flt_~res~0; 1243#L69-1 base2flt_#res := base2flt_~__retres4~0; 1244#L70-1 main_#t~ret5 := base2flt_#res;main_~one~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1248#L19-2 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 1227#L69-2 base2flt_#res := base2flt_~__retres4~0; 1241#L70-2 main_#t~ret6 := base2flt_#res;main_~a~0 := main_#t~ret6;havoc main_#t~ret6;base2flt_#in~m, base2flt_#in~e := main_~mb~2, main_~eb~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1249#L19-3 assume !(0 == base2flt_~m % 4294967296); 1234#L25-3 assume !(base2flt_~m % 4294967296 < 16777216); 1235#L47-11 [2018-11-28 23:25:29,865 INFO L796 eck$LassoCheckResult]: Loop: 1235#L47-11 assume !false; 1264#L48-3 assume base2flt_~m % 4294967296 >= 33554432; 1242#L49-3 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 1235#L47-11 [2018-11-28 23:25:29,867 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:25:29,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1360904017, now seen corresponding path program 1 times [2018-11-28 23:25:29,867 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:25:29,867 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:25:29,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:25:29,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:25:29,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:25:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:25:30,175 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 10 [2018-11-28 23:25:30,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:25:30,176 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:25:30,176 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 23:25:30,177 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 23:25:30,177 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:25:30,177 INFO L82 PathProgramCache]: Analyzing trace with hash 261296, now seen corresponding path program 1 times [2018-11-28 23:25:30,177 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:25:30,177 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:25:30,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:25:30,178 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:25:30,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:25:30,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:25:30,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:25:30,206 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:25:30,207 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:25:30,207 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:25:30,207 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:25:30,207 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:25:30,207 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:30,208 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:25:30,208 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:25:30,208 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_3_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration6_Loop [2018-11-28 23:25:30,208 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:25:30,208 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:25:30,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:25:30,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:25:30,326 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:25:30,326 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:30,332 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:25:30,332 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:30,355 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:25:30,355 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:25:30,379 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:25:30,380 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:25:30,381 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:25:30,381 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:25:30,381 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:25:30,381 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:25:30,381 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:30,381 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:25:30,381 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:25:30,381 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_3_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration6_Loop [2018-11-28 23:25:30,382 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:25:30,382 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:25:30,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:25:30,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:25:30,665 WARN L180 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-11-28 23:25:30,665 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:25:30,666 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:25:30,667 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:25:30,667 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:25:30,668 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:25:30,670 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:25:30,670 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:25:30,670 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:25:30,671 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:25:30,671 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:25:30,675 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:25:30,677 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:25:30,677 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 23:25:30,678 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:25:30,678 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:25:30,678 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:25:30,679 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2018-11-28 23:25:30,679 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:25:30,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:25:30,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:25:30,739 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:25:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:25:30,745 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:25:30,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:25:30,745 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 23:25:30,746 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 51 transitions. cyclomatic complexity: 16 Second operand 3 states. [2018-11-28 23:25:30,756 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 51 transitions. cyclomatic complexity: 16. Second operand 3 states. Result 43 states and 55 transitions. Complement of second has 4 states. [2018-11-28 23:25:30,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:25:30,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:25:30,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 40 transitions. [2018-11-28 23:25:30,758 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 40 transitions. Stem has 17 letters. Loop has 3 letters. [2018-11-28 23:25:30,758 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:25:30,758 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 40 transitions. Stem has 20 letters. Loop has 3 letters. [2018-11-28 23:25:30,759 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:25:30,759 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 40 transitions. Stem has 17 letters. Loop has 6 letters. [2018-11-28 23:25:30,759 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:25:30,759 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 55 transitions. [2018-11-28 23:25:30,760 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 23:25:30,760 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 37 states and 47 transitions. [2018-11-28 23:25:30,760 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2018-11-28 23:25:30,761 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2018-11-28 23:25:30,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 47 transitions. [2018-11-28 23:25:30,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:25:30,761 INFO L705 BuchiCegarLoop]: Abstraction has 37 states and 47 transitions. [2018-11-28 23:25:30,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 47 transitions. [2018-11-28 23:25:30,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-11-28 23:25:30,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-28 23:25:30,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2018-11-28 23:25:30,769 INFO L728 BuchiCegarLoop]: Abstraction has 37 states and 47 transitions. [2018-11-28 23:25:30,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 23:25:30,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 23:25:30,770 INFO L87 Difference]: Start difference. First operand 37 states and 47 transitions. Second operand 4 states. [2018-11-28 23:25:30,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:25:30,853 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2018-11-28 23:25:30,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 23:25:30,854 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 56 transitions. [2018-11-28 23:25:30,855 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 23:25:30,856 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 45 states and 56 transitions. [2018-11-28 23:25:30,856 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2018-11-28 23:25:30,856 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2018-11-28 23:25:30,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 56 transitions. [2018-11-28 23:25:30,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:25:30,856 INFO L705 BuchiCegarLoop]: Abstraction has 45 states and 56 transitions. [2018-11-28 23:25:30,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 56 transitions. [2018-11-28 23:25:30,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 39. [2018-11-28 23:25:30,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-28 23:25:30,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2018-11-28 23:25:30,859 INFO L728 BuchiCegarLoop]: Abstraction has 39 states and 50 transitions. [2018-11-28 23:25:30,859 INFO L608 BuchiCegarLoop]: Abstraction has 39 states and 50 transitions. [2018-11-28 23:25:30,859 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-11-28 23:25:30,859 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 50 transitions. [2018-11-28 23:25:30,860 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 23:25:30,860 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:25:30,860 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:25:30,860 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:25:30,860 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 23:25:30,862 INFO L794 eck$LassoCheckResult]: Stem: 1502#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1499#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 1474#L69 base2flt_#res := base2flt_~__retres4~0; 1475#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := 1, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1495#L19-1 assume !(0 == base2flt_~m % 4294967296); 1482#L25-1 assume base2flt_~m % 4294967296 < 16777216; 1483#L37-3 assume !false; 1493#L28-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 1494#L37-2 assume base2flt_~m % 4294967296 < 16777216; 1505#L37-3 assume !false; 1492#L28-1 assume base2flt_~e <= -128;base2flt_~__retres4~0 := 0; 1485#L69-1 base2flt_#res := base2flt_~__retres4~0; 1486#L70-1 main_#t~ret5 := base2flt_#res;main_~one~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1490#L19-2 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 1471#L69-2 base2flt_#res := base2flt_~__retres4~0; 1484#L70-2 main_#t~ret6 := base2flt_#res;main_~a~0 := main_#t~ret6;havoc main_#t~ret6;base2flt_#in~m, base2flt_#in~e := main_~mb~2, main_~eb~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1491#L19-3 assume !(0 == base2flt_~m % 4294967296); 1478#L25-3 assume base2flt_~m % 4294967296 < 16777216; 1476#L37-7 [2018-11-28 23:25:30,862 INFO L796 eck$LassoCheckResult]: Loop: 1476#L37-7 assume !false; 1477#L28-3 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 1501#L37-6 assume base2flt_~m % 4294967296 < 16777216; 1476#L37-7 [2018-11-28 23:25:30,862 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:25:30,863 INFO L82 PathProgramCache]: Analyzing trace with hash -377438794, now seen corresponding path program 1 times [2018-11-28 23:25:30,863 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:25:30,863 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:25:30,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:25:30,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:25:30,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:25:30,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:25:31,092 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:25:31,092 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 23:25:31,093 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 23:25:31,117 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:25:31,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:25:31,151 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:25:31,158 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:25:31,190 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 23:25:31,191 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 5 [2018-11-28 23:25:31,191 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 23:25:31,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:25:31,191 INFO L82 PathProgramCache]: Analyzing trace with hash 235537, now seen corresponding path program 1 times [2018-11-28 23:25:31,192 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:25:31,192 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:25:31,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:25:31,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:25:31,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:25:31,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:25:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:25:31,306 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:25:31,306 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:25:31,306 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:25:31,306 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:25:31,307 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:25:31,307 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:31,307 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:25:31,307 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:25:31,307 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_3_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration7_Loop [2018-11-28 23:25:31,307 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:25:31,308 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:25:31,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:25:31,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:25:31,399 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:25:31,399 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:31,403 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:25:31,404 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:25:31,415 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:25:31,415 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m=0} Honda state: {ULTIMATE.start_base2flt_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:31,436 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:25:31,436 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:31,459 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:25:31,459 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:25:31,481 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:25:31,483 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:25:31,484 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:25:31,484 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:25:31,484 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:25:31,484 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:25:31,484 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:25:31,484 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:25:31,484 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:25:31,484 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_3_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration7_Loop [2018-11-28 23:25:31,485 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:25:31,485 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:25:31,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:25:31,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:25:31,579 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:25:31,579 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:25:31,580 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:25:31,580 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:25:31,581 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:25:31,581 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:25:31,581 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:25:31,581 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:25:31,582 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:25:31,582 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:25:31,583 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:25:31,584 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:25:31,584 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:25:31,585 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:25:31,585 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:25:31,585 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:25:31,585 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:25:31,585 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:25:31,586 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:25:31,587 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:25:31,589 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:25:31,589 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 23:25:31,590 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:25:31,590 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:25:31,590 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:25:31,590 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2018-11-28 23:25:31,590 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:25:31,612 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:25:31,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:25:31,646 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:25:31,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:25:31,666 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:25:31,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:25:31,731 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 23:25:31,732 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 50 transitions. cyclomatic complexity: 15 Second operand 4 states. [2018-11-28 23:25:31,757 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 50 transitions. cyclomatic complexity: 15. Second operand 4 states. Result 43 states and 54 transitions. Complement of second has 4 states. [2018-11-28 23:25:31,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:25:31,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 23:25:31,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 37 transitions. [2018-11-28 23:25:31,765 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 37 transitions. Stem has 18 letters. Loop has 3 letters. [2018-11-28 23:25:31,766 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:25:31,766 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 37 transitions. Stem has 21 letters. Loop has 3 letters. [2018-11-28 23:25:31,766 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:25:31,766 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 37 transitions. Stem has 18 letters. Loop has 6 letters. [2018-11-28 23:25:31,766 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:25:31,769 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 54 transitions. [2018-11-28 23:25:31,769 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:25:31,769 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 0 states and 0 transitions. [2018-11-28 23:25:31,770 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 23:25:31,770 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 23:25:31,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 23:25:31,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:25:31,770 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:25:31,770 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:25:31,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 23:25:31,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-28 23:25:31,771 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2018-11-28 23:25:31,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:25:31,771 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-28 23:25:31,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 23:25:31,771 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-28 23:25:31,771 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:25:31,771 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 23:25:31,771 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 23:25:31,772 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 23:25:31,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 23:25:31,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:25:31,772 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:25:31,772 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:25:31,772 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:25:31,772 INFO L442 BuchiCegarLoop]: ======== Iteration 8============ [2018-11-28 23:25:31,772 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 23:25:31,772 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:25:31,772 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 23:25:31,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:25:31 BoogieIcfgContainer [2018-11-28 23:25:31,781 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:25:31,781 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:25:31,782 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:25:31,782 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:25:31,782 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:25:24" (3/4) ... [2018-11-28 23:25:31,798 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 23:25:31,798 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:25:31,799 INFO L168 Benchmark]: Toolchain (without parser) took 8901.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 199.2 MB). Free memory was 952.7 MB in the beginning and 983.3 MB in the end (delta: -30.7 MB). Peak memory consumption was 168.6 MB. Max. memory is 11.5 GB. [2018-11-28 23:25:31,800 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:25:31,800 INFO L168 Benchmark]: CACSL2BoogieTranslator took 365.78 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 936.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-28 23:25:31,802 INFO L168 Benchmark]: Boogie Procedure Inliner took 125.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -178.4 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-11-28 23:25:31,803 INFO L168 Benchmark]: Boogie Preprocessor took 36.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:25:31,804 INFO L168 Benchmark]: RCFGBuilder took 870.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. [2018-11-28 23:25:31,806 INFO L168 Benchmark]: BuchiAutomizer took 7482.51 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 79.2 MB). Free memory was 1.1 GB in the beginning and 983.3 MB in the end (delta: 97.2 MB). Peak memory consumption was 176.3 MB. Max. memory is 11.5 GB. [2018-11-28 23:25:31,807 INFO L168 Benchmark]: Witness Printer took 16.38 ms. Allocated memory is still 1.2 GB. Free memory is still 983.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:25:31,813 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 365.78 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 936.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 125.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -178.4 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 870.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 7482.51 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 79.2 MB). Free memory was 1.1 GB in the beginning and 983.3 MB in the end (delta: 97.2 MB). Peak memory consumption was 176.3 MB. Max. memory is 11.5 GB. * Witness Printer took 16.38 ms. Allocated memory is still 1.2 GB. Free memory is still 983.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 13 terminating modules (6 trivial, 7 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * e + 253 and consists of 4 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. 6 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.4s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 5.3s. Construction of modules took 0.7s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 9. Automata minimization 0.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 95 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 40 states and ocurred in iteration 5. Nontrivial modules had stage [7, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 541 SDtfs, 372 SDslu, 116 SDs, 0 SdLazy, 207 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT6 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax100 hnf95 lsp57 ukn100 mio100 lsp100 div596 bol100 ite100 ukn100 eq131 hnf43 smp92 dnf100 smp100 tf105 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...